Nearpasserines

Nearpasserines, also known as "near passerines," are a group of birds that are closely related to passerines, but do not belong to the order Passeriformes. They are characterized by their small to medium body size, perching habits, and often, a song-like vocalization. Nearpasserines include a diverse range of species, such as the hummingbirds, swifts, and trogons.

Hummingbirds, for instance, are known for their rapid wing beats and ability to hover in mid-air. They are found in the Americas and are crucial pollinators in their ecosystems. Swifts, on the other hand, are known for their long, pointed wings and their ability to fly at high speeds. They are found in both the Old and New Worlds. Trogons are another group of nearpasserines, known for their vibrant plumage and distinctive beak shape.

Despite their similarities to passerines, nearpasserines have distinct evolutionary histories. They are believed to have diverged from passerines around 60-70 million years ago. This divergence is reflected in their anatomical and behavioral traits. For example, nearpasserines typically have a higher metabolic rate and a more complex vocal system than passerines.

Nearpasserines play important roles in their respective ecosystems. Hummingbirds, for example, are crucial pollinators, while swifts and trogons contribute to seed dispersal. Their unique adaptations and ecological roles make them an interesting and diverse group of birds.